Firewall like mail filter

Mopher is a mail filter application that implements Sendmails Milter API with
the main purpose of filtering spam. Design goals are scalability combined with
a lightweight and modular code base. The filter configuration format aims to
feel like a firewall configuration.

Current set of features

Greylisting

Tarpitting

Database storage

Automatic whitelisting

Works great with

BerkeleyDB 1.85

ClamAV

DNS blacklists

GeoLite

P0f

PostgreSQL

Sender Policy Framework SPF

Spamassassin

SQLite3

Documentation

Documantation and HTML versions of the mopher man pages can be found
here. If you want to get mopher up and running as fast as possible
begin by reading the Get started tutorial.